Liquid-expelling apparatus



Sept.` 2,v 1930. J. 'rl-in-:CKE 1,774,952

LIQUID BXPELLING mums Filed sept. 12, i927 l burra srATEs PATEN ml-lcA.mms surnom, or BEBEIN-PANKOW, GERNANY, AssIGNoR lor" Two-ramps rro'mane man MINIMAX a-e., or BERLIN, GERMANY, A coRroRA'rIoN or GERMANY,Arm

HERE. HERZOG, F JMLIT, GERMANY IIQUIID-EXPELLING APPARATUS VApplicationmed septemper 12, 1927, serial No.-

My invention relates to liquid expelling apparatus in which the liquidis forced out of the apparatus by a gaseous medium under pressure. 7.

'u My improved liquid expelling apparatus consists substantially of astorage receptacle or tank for the liquid, which may be of any suitableconstruction, and a pressure chamber in which a pressure aboveatmospheric may 2J be set up b the aidof a quickly burning substance. Te gases thus set up and placed under pressure lare led into the storagetank where theyv collect above the liquid in order` to force this'liquid through suitable ducts 5 and an atomizer or .squirting nozzle-outof the apparatus. The quickly burning substance r mixture of substances,preferably gun powder or the like contained in a cartridge, may in apreferred form of the apparatus be ignited by a striking pin actuated inknown way.:

v In the drawing afixed hereto and forming part of my specicationembodiments of my linvention are illustrated .by way of example.

In thevdrawing- Fig. 1 is a vertical section through my improved. liquidexpelling apparatus and Fig. 2 is a similar section through the topportion of the apparatus. Like parts are indicated by like letters ofreference in both figures of the drawing.-

Referring to the drawing it will be observed that the apparatus consistsof a re ceptacle, tank or container 5 for the :liquid 5 and a body orblock 6,' which may serve as the Icoverof 'said receptacle. The pressuregas is generated in a chamber 2O provided in block 6. This chamberis'connected with u the interiorA of the'receptacle 5 by a tube 1'5provided 'with a non-return valve 15a at its -lower end, so that the gasis obliged to lpass through the liquid before itis able to-a'ccumulateabove the level of the liquid.' The liq- -uid is then forced out'jof theapparat-'us through a pipe'16 extending to apoint near `the bottom ofthel receptacle 5 and a squirting or atomizing nozzle when a closingmember, such as a cock 19 or valve, in the discharge 50 pipe 16'isopened. If the'apparatus is started detachable fmanner. j,

2151033, and in germany' september' 1s, 192s.

by an automatic mechanism,l the valve 19 may be omitted. i

The mechanism for generating the com-- pressed gas consists intheembodiment illustrated, as shown in Fig. 1, of a barrel 21 in- 55 Sertedinto the chamber 20 and servingv for the reception of a cartridge 22containing the propelling medium, a striking pin 23 and a device fordriving said strikingpin against the cartridge. This ,devicejmayconsist`of a '.60 hammer 24 and trigger 25,i similar to the elements forcocking and firing a gun. The striking pin is guided in a sealing plug26 screwed into the tapped rear end of the chamber 20 and adapted to beeasily removed in- 05 -order to place a cartridge into the barrel 21.

For this purpose the hammer 24 is also mounted on the body or block 6inan easily As shown more claarly in Fig. 2, vthe car- 10 tridge 22contains the priming cap 31 to -be ignited bythe striking bolt, and atthe. base a thin layer 27 o f a detonating` scale powder` and beyond thelatter, a certain 'quantity of a sluggishl burning gun-powder 2 8 inpieces 7.5

or granu es. The cartridge" is sealed by athin ldisc 29 of cardboard orany other suitable-material. On the end of the barrel 21 is yplaceda'cylinder 30 of perforated sheet metal or Wiregauze and fixed inposition, if deso tion chamber for the charge 2 8.

The charge 28` is vignited .by ,the quickly burning gunpowder primingandprojected into the cylinde' r 30 Where it is able, 85

to burnslovvly. A gradually risingand uniform pressure isset up in thisway/:Which does not subject -the materiallof which the apparatus isconstructedQto severe stresses. For

vmany 'purposes itis', furthermorefdesirable 00 that the liquid should.be slowly discharged.. fromthe apparatils.` v Q. l Ij fv 'My improvedppalratua'inthis instance a freextinguisher, operates in the following;

of the receptacle 5; THe-products fvcon'ibusl loll'i tion consistingmainly of carbonio acid gas and nitrogen enter into the extinguishingliquid in the direction ofthe arrows. ThecarbonioA acid gas passingthrough the liquid becomes partially or completely dissolved in it andthusaids the extinguishing action of the liquid later on. That partolf/the`v carbonic acid gas which does not dissolve in the li uid alongwith the nitrogen accumulates a ove the level of the liquid. Thepressure in the extinguisher receptacle. or tank will then remainsubstantially unchanged so that the extinguishing liquid may beexpelled' l tin uisher itself may have any desired shape an that insteadof gunpowder any other su Stance may be employed which producescompressed gases when burned. The provision ofthe non-return vvalve 15renders it possible to inert a second cartridge into the barrel shouldit be found that in extinguishers of 3'0" great ca acitytheentirequantity of `water has not een1discharged from the apparatus.

by the first cartridge. The mechanism may be employed equally well forother purposes,

for instance as an atomizer for 'liquids used- 3:54 for disinfection ordestruction of vermin on plants.

Various modifications and changes may be made without departing fromthespirit and thesco e of my invention, and I desire, therethe fact thatsaid cartridge contains a fast burning gunpowder at its base and a slowburning gunpowder in its head adapted to be ignited by said fast burninggunpowder and projected into said chamber upon saidcartridge beingfired.

4. An arrangement for producing pressure gas consisting of a chamber, acombustion compartment with foraminous walls in said chamber, acartridgein said chamber and communicating with said combustioncompartment, and means for firing said cartridge, characterized by thefact that said cartridge contains a fast burning gunpowder at its .baseand a slow burning gas-producing substance in its head adapted to beignited by said fast burning gunpowder and projected into saidcombustion compartment upon said cartridge being iired.v Y

In testimony whereofI aix'my'signature.

J ULIUS THIECKE.

40 fore,s t at only such limitations shall be placed thereon art. I

I claimas my. invention 1.- I'n a liquld expelling ap aratus of the kinddescribed, a receptacle a apted tofcontaina liquid, a combustionchamberf communicatin means connectlng sa1d receptacle v and 'said camber, a slow burning substance adapted to produce la as' are imposed bythe prior as when burned, and

meansfor igniting said substance and project-ing `it into 'said chamber.

arrangement for producing pressure gas consisting of a chamber, acartridge comv municating with said chamber, and means for firing saidcartridge, characterized'by thel fact that said cartridge contains afast burning gunpowder at its base and a slow burning gas-producingsubstance in its headl adapted-tobe ignited; by said fast burning .60gunpowder andprojected into said chamber upon said cartrl ge beingfired.

3. n arrangement for producing pressure f' gas consisting of a'ohamber,a cartridge communicating with said chamber, `and means'.

for firing `said cartridge, characterized by iasA

